全文获取类型
收费全文 | 33605篇 |
免费 | 981篇 |
国内免费 | 102篇 |
专业分类
管理学 | 3511篇 |
劳动科学 | 38篇 |
民族学 | 541篇 |
人才学 | 25篇 |
人口学 | 2101篇 |
丛书文集 | 4866篇 |
教育普及 | 1篇 |
理论方法论 | 2198篇 |
现状及发展 | 1篇 |
综合类 | 7179篇 |
社会学 | 9143篇 |
统计学 | 5084篇 |
出版年
2023年 | 169篇 |
2022年 | 318篇 |
2021年 | 337篇 |
2020年 | 462篇 |
2019年 | 508篇 |
2018年 | 656篇 |
2017年 | 944篇 |
2016年 | 706篇 |
2015年 | 766篇 |
2014年 | 944篇 |
2013年 | 3891篇 |
2012年 | 1431篇 |
2011年 | 1676篇 |
2010年 | 1623篇 |
2009年 | 1644篇 |
2008年 | 1539篇 |
2007年 | 1665篇 |
2006年 | 1691篇 |
2005年 | 1410篇 |
2004年 | 911篇 |
2003年 | 751篇 |
2002年 | 908篇 |
2001年 | 886篇 |
2000年 | 728篇 |
1999年 | 649篇 |
1998年 | 441篇 |
1997年 | 438篇 |
1996年 | 442篇 |
1995年 | 385篇 |
1994年 | 312篇 |
1993年 | 316篇 |
1992年 | 370篇 |
1991年 | 295篇 |
1990年 | 308篇 |
1989年 | 298篇 |
1988年 | 259篇 |
1987年 | 233篇 |
1986年 | 236篇 |
1985年 | 269篇 |
1984年 | 272篇 |
1983年 | 271篇 |
1982年 | 215篇 |
1981年 | 190篇 |
1980年 | 183篇 |
1979年 | 225篇 |
1978年 | 170篇 |
1977年 | 161篇 |
1976年 | 150篇 |
1975年 | 139篇 |
1974年 | 130篇 |
排序方式: 共有10000条查询结果,搜索用时 31 毫秒
71.
张礼 《山西高等学校社会科学学报》2007,19(9):21-23
在构建社会主义和谐社会理念指导下,和谐的家庭教育文化培育之路应是:树立家庭和谐教育理念,确立和谐教育目标,抓住重点内容,运用和谐教育方式,建设和谐家庭环境。 相似文献
72.
Amy H. Herring Joseph G. Ibrahim Stuart R. Lipsitz 《Journal of the Royal Statistical Society. Series C, Applied statistics》2004,53(2):293-310
Summary. Non-ignorable missing data, a serious problem in both clinical trials and observational studies, can lead to biased inferences. Quality-of-life measures have become increasingly popular in clinical trials. However, these measures are often incompletely observed, and investigators may suspect that missing quality-of-life data are likely to be non-ignorable. Although several recent references have addressed missing covariates in survival analysis, they all required the assumption that missingness is at random or that all covariates are discrete. We present a method for estimating the parameters in the Cox proportional hazards model when missing covariates may be non-ignorable and continuous or discrete. Our method is useful in reducing the bias and improving efficiency in the presence of missing data. The methodology clearly specifies assumptions about the missing data mechanism and, through sensitivity analysis, helps investigators to understand the potential effect of missing data on study results. 相似文献
73.
Biao Zhang 《Australian & New Zealand Journal of Statistics》2004,46(3):407-423
Demonstrated equivalence between a categorical regression model based on case‐control data and an I‐sample semiparametric selection bias model leads to a new goodness‐of‐fit test. The proposed test statistic is an extension of an existing Kolmogorov–Smirnov‐type statistic and is the weighted average of the absolute differences between two estimated distribution functions in each response category. The paper establishes an optimal property for the maximum semiparametric likelihood estimator of the parameters in the I‐sample semiparametric selection bias model. It also presents a bootstrap procedure, some simulation results and an analysis of two real datasets. 相似文献
74.
当前西方危机与现代性危机最深刻的症候,是在其最高知识权威的影响下,现代后期的某些学说(列奥·施特劳斯所谓的历史主义、相对主义学说)撼动了西方人的根基,人们丧失了方向感。这种理论上的危机带来的实际后果主要表现在:一种本来意义上的政治哲学所要求的普遍有效方式去解答对错、好坏问题不再可能。既然现代性的危机源于对现代政治哲学隐含的这个前提的表达,那么,现代性批判的中心课题是对现代理性主义或对理性之现代信仰的批判,它逻辑地包含了对恒久和普遍美好生活原则的辩护,试图恢复人们的自信,以便能够合理地赋予价值判断以效力。 相似文献
75.
76.
张育仁 《重庆师范大学学报(哲学社会科学版)》2008,(6)
2008年9月,莫怀戚长篇小说<白沙码头>研讨会在重庆召开.与会专家学者一致认为:<白沙码头>不是一般意义上的传奇小说,其内涵深厚,信息量极大,它所展示的民间生存智慧和作家的民间艺术立场相当鲜明而感人,特别是对我们反省现实、反省历史、反省我们当代人自己具有不可替代的价值意义. 相似文献
77.
We define a class of count distributions which includes the Poisson as well as many alternative count models. Then the empirical probability generating function is utilized to construct a test for the Poisson distribution, which is consistent against this class of alternatives. The limit distribution of the test statistic is derived in case of a general underlying distribution, and efficiency considerations are addressed. A simulation study indicates that the new test is comparable in performance to more complicated omnibus tests. 相似文献
78.
Two habituation experiments were conducted to investigate how 4‐month‐old infants perceive partly occluded shapes. In the first experiment, we presented a simple, partly occluded shape to the infants until habituation was reached. Then we showed either a probable completion (one that would be predicted on the basis of both local and global cues) or an improbable completion. Longer looking times were found for the improbably completed shape (compared to probable and control conditions), suggesting that the probable shape was perceived during partial occlusion. In the second experiment, infants were habituated to more ambiguous partly occluded shapes, where local and global cues would result in different completions. For adults, the percept of these shapes is usually dominated by global influences. However, after habituation the infants looked longer at the globally completed shapes. These results suggest that by the age of 4 months, infants are able to infer the perceptual completion of partly occluded shapes, but for more ambiguous shapes, this completion seems to be dominated by local influences. 相似文献
79.
Although Latinas/os have a long history in the USA and represent a growing percentage of the population, they remain largely invisible or stereotyped in dominant images and discourses. Such representations are often ahistorical, and they camouflage the effects of US power and inequality. However, the spring 2006 immigrant rights demonstrations disturbed dominant conceptions. The demonstrators called attention to the contradictory US practices that disrupt home countries, recruit labor migrants, and deny immigrants full participation. Likewise, the role of students in these demonstrations spurred reflections on why youth would walk out of their schools for immigrant rights. Inspired by these demonstrations, we combine materials from multiple disciplines to emphasize the significance of US imperialism, exploitation, and exclusion on Latina/o migration, education, and activism. Key to this article is a reframing of how the media, K-12 curriculum, and popular discourse often engage in a cultural cover-up that sustains inequality. 相似文献
80.